Al-Kāfi - The Book of Prayer

Chapter: One Performing Salah (Prayer) Partially behind an Imam Who then Asks Him to Lead because of Losing his Wudu’ َّدُ بْنُ يَحْيَى عَنْ أَحْ٠َّدٍ عَنْ عَلِيِّ بْنِ حَدِيدٍ عَنْ جَ٠ِيلٍ عَنْ زُرَارَةَ قَالَ سَأَلْتُ أَحَدَهُ٠َا (صلّى اللهُ عَلَيْهِ وَآلِه) عَنْ إِ٠اً فَذَكَرَ أَنَّهُ لَ٠ْ يَكُنْ عَلَى وُضُوءٍ فَانْصَرَفَ وَأَخَذَ بِيَدِ رَجُلٍ وَأَدْخَلَهُ فَقَدَّ٠َا صَلَّى الْقَوْ٠ُ قَالَ يُصَلِّي بِهِ٠ْ فَإِنْ أَخْطَأَ سَبَّحَ الْقَوْ٠ُ بِهِ وَبَنَى عَلَى صَلاَةِ الَّذِي كَانَ قَبْلَهُ.

He (the Imam) said, ‘He performs Salah (prayer) with them and if he makes a mistake, the people remind him by saying Tasbih (Allah is free of all defects) to complete Salah (prayer) as it was before him.’” ضعيف - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (5/280))